package com.lanou3g.Hw0516.common;
//常量类
public final class Constant {
    /*
     session相关
     内部类 在一个类里  装着其他类
    */
    public static final class Session{
    public static final String USER = "user";
}
public static final class Request{
        public static final String USER_MSG = "msg";
}
}